y=2sin2x+2根号3sinx•cosx-2
从题目中,系数有误,请核对后追问.函数y=2sin²x+2根号3sinx•cosx-2。x是埃克斯；后面是2被根号3y=(1-cos2x)+√3sin2x-2 =√3sin2x-cos2x-1 =2sin(2x-π/6)-1(1)周期 T =2π/2=π(2)最大值是1，最小值-3